Finding the Fourth Proportional to 142,667,399.59, 196,881,040.23 and 86,912,803.14

Step by Step Solution

1. Step 1: Write the proportion equation
   142,667,399.59 : 196,881,040.23 = 86,912,803.14 : x
2. Step 2: Convert to fraction form
   142,667,399.59/196,881,040.23 = 86,912,803.14/x
3. Step 3: Cross multiply
   142,667,399.59x = 196,881,040.23 × 86,912,803.14
4. Step 4: Simplify right side
   142,667,399.59x = 17,111,483,090,444,184
5. Step 5: Solve for x
   x = 17,111,483,090,444,184/142,667,399.59
6. Step 6: Final answer
   x = 119,939,685.87